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Well ahead of its expected debut which is still more than three years away, our spy photographers have captured a glimpse of a Mercedes-Benz SLK mule in frozen northern Scandinavia.

Mercedes 2012 slk

Mercedes-Benz has pulled the covers off its redesigned 2012 SLK-Class, providing an early glimpse at the roadster's new styling — including an exotic panoramic "vario" roof that changes transparency — and new direct-injection engines. The 2012 SLK goes on sale this summer in the U.S.

The two-seater gets a new face that not only recalls classic Mercedes-Benz roadsters from the '50s, but also conjures a family resemblance with the current range-topping SLS AMG. While the new design is more aerodynamically efficient, it is the choice of roof treatments on the third-generation SLK that may intrigue potential buyers the most.